BZM/Polini Internals into Baby Blata 2.5 Engine

Is it possible to replace the stock 2.5 engine internals with that of BZM or Polini without major modifications (or any modifications at all)?

Hi Birds
The 2.5 is a totally different style of engine...I wouldn't mess with it as they came out from the Blata factory and usually are set up very well to get peak performance.
Instead of changing the crank or barel,you could look at the carby and depending on which style of exhaust pipe you have on the bike up date that.
These two mods can develope more HP.At the end of the day ths bike is a juniors bike for smaller riders and has been limited in HP for this reason.
I don't mean to sound like a red neck when I say this...but If you are after more HP then it may be time to up grade ...looking at a more powerful bike.